Ground control point center determination

1. A system comprising one or more processors comprising hardware, the one or more processors configured to perform the operations comprising:

receiving geo-spatial locations of one or more ground control points used in an aerial survey;

receiving digital images obtained by an unmanned aerial vehicle (UAV), the digital images including an aerial view depicting at least one of the ground control points; segmenting the digital images into one or more groups, wherein a group includes digital images for a particular ground control point;

processing each group of digital images, the processing comprising:

identifying a center location of a ground control point in a particular image; and

determining a pixel coordinate of the center location of the ground control point; and

performing photogrammetric processing on the received digital images using the determined pixel coordinates of the ground control points identified in the digital images.

2. The system of claim 1 , the operations further comprising:

generating a dataset including the pixel coordinate identifying the center location of a ground control point found in the image.

3. The system of claim 1 , the operations further comprising:

associating the determined pixel coordinate with a geo-spatial location of a ground control point.

4. The system of claim 1 , wherein each digital image has an associated geo-spatial coordinate of where the digital image was taken by the UAV.

5. The system of claim 1 , wherein each digital image has an associated yaw, pitch and roll value of the UAV, when the UAV captured the respective digital image.

6. The system of claim 1 , the operations further comprising:

generating a geo-rectified 3D model, or composite image, based on the aerial images using the pixel coordinates of the ground control points.

7. The system of claim 1 , the operations further comprising:

determining a quality score of the image, and discarding the image from determining a pixel coordinate if the quality score does not a threshold value.

8. A computerized method performed by a system comprising one or more processors, the method comprising:

receiving geo-spatial locations of one or more ground control points used in an aerial survey;

receiving digital images obtained by an unmanned aerial vehicle (UAV), the digital images including an aerial view depicting at least one of the ground control points;

segmenting the digital images into groups, wherein a group includes digital images for a particular ground control point;

processing each group of digital images, the processing comprising:

identifying a center location of a ground control point in a particular image; and

determining a pixel coordinate of the center location of the ground control point; and

performing photogrammetric processing on the received digital images using the determined pixel coordinates of the ground control points identified in the digital images.

9. The method of claim 8 , further comprising:

generating a dataset including the pixel coordinate identifying the center location of a ground control point found in the image.

10. The method of claim 8 , further comprising:

associating the determined pixel coordinate with a geo-spatial location of a ground control point.

11. The method of claim 8 , wherein each digital image has an associated geo-spatial coordinate of where the digital image was taken by the UAV.

12. The method of claim 8 , wherein each digital image has an associated yaw, pitch and roll value of the UAV, when the UAV captured the respective digital image.

13. The method of claim 8 , further comprising:

generating a geo-rectified 3D model, or composite image, based on the aerial images using the pixel coordinates of the ground control points.

14. The method of claim 8 , further comprising:

determining a quality score of the image, and discarding the image from determining a pixel coordinate if the quality score does not a threshold value.

15. A non-transitory computer storage medium comprising instructions that when executed by one or more processors, cause the processors to perform operations comprising:

receiving geo-spatial locations of one or more ground control points used in an aerial survey;

receiving digital images obtained by an unmanned aerial vehicle (UAV), the digital images including an aerial view depicting at least one of the ground control points;

segmenting the digital images into groups, wherein a group includes digital images for a particular ground control point;

processing each group of digital images, the processing comprising:

identifying a center location of a ground control point in a particular image; and

determining a pixel coordinate of the center location of the ground control point; and

performing photogrammetric processing on the received digital images using the determined pixel coordinates of the ground control points identified in the digital images.

16. The non-transitory computer storage medium of claim 15 , the operations further comprising:

generating a dataset including the pixel coordinate identifying the center location of a ground control point found in the image.

17. The non-transitory computer storage medium of claim 15 , the operations further comprising:

associating the determined pixel coordinate with a geo-spatial location of a ground control point.

18. The non-transitory computer storage medium of claim 15 , wherein each digital image has an associated geo-spatial coordinate of where the digital image was taken by the UAV.

19. The non-transitory computer storage medium of claim 15 , wherein each digital image has an associated yaw, pitch and roll value of the UAV, when the UAV captured the respective digital image.

20. The non-transitory computer storage medium of claim 15 , the operations further comprising:

generating a 3D surface model, or a composite image, based on the aerial images using the determined pixel coordinates of the ground control points.